Date: Wed, 11 Jul 2001 21:51:22 -0700 (PDT) From: Matt Dillon <dillon@earth.backplane.com> To: "Justin T. Gibbs" <gibbs@scsiguy.com> Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/vm vm_zeroidle.c src/sys/alpha/alpha vm_machdep.c src/sys/conf files src/sys/i386/i386 vm_machdep.c src/sys/ia64/ia64 vm_machdep.c src/sys/powerpc/powerpc vm_machdep.c Message-ID: <200107120451.f6C4pMG41228@earth.backplane.com> References: <200107120237.f6C2bcU47653@aslan.scsiguy.com>
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:
:>dillon 2001/07/04 18:32:42 PDT
:>
:> Modified files:
:> sys/alpha/alpha vm_machdep.c
:> sys/conf files
:> sys/i386/i386 vm_machdep.c
:> sys/ia64/ia64 vm_machdep.c
:> sys/powerpc/powerpc vm_machdep.c
:> Added files:
:> sys/vm vm_zeroidle.c
:> Log:
:> Move vm_page_zero_idle() from machine-dependant sections to a
:> machine-independant source file, vm/vm_zeroidle.c. It was exactly the
:> same for all platforms and updating them all was getting annoying.
:
:I seem to recall NetBSD doing some work to optimize their x86
:zero page code to avoid adverse cache effects. Making this
:completely MI prevents such optimizations.
:
:--
:Justin
No it doesn't. Read the code and look at the part that actually
zero's the page.
-Matt
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